Flat Sheet — Extra Deep Pocket
Loose, non-elastic deep pocket top sheet for extra-deep mattresses with 20 in / 51 cm default depth and ~10 in / 25 cm tuck allowance.
Measure your mattress at its widest, longest, and deepest points
DEEP POCKET TOP SHEET — MADE FOR EXTRA-DEEP MATTRESSES
MildMate's Flat Sheet — Extra Deep Pocket is a loose, non-elastic top sheet for thick mattresses, pillow-tops, mattress toppers, adjustable beds, and custom sizes.
It is designed to cover the mattress top, travel down the sides, and provide generous fabric for tucking underneath.
- One loose, non-elastic top sheet
- No fitted corners
- No 360° elastic
- Available in CloudSoft, BreezePlus, PremaCotton, and EcoLuxe
DEFAULT DEPTH + TUCK LOGIC
Standard production uses 20 in / 51 cm mattress depth plus approximately 10 in / 25 cm under-tuck on each edge.
Formula: Confirmed mattress depth + ~10 in / 25 cm tuck = extension beyond each mattress-top edge.
Default example: 20 in / 51 cm depth + 10 in / 25 cm tuck = approximately 30 in / 76 cm extension per edge.
FINISHED SIZE GUIDANCE
This is intentionally oversized for secure tucking on deep mattresses.
- Finished Width = Mattress Width + 2 × (Mattress Depth + 10 in / 25 cm tuck)
- Finished Length = Mattress Length + 2 × (Mattress Depth + 10 in / 25 cm tuck)
Please provide actual Width × Length × Depth whenever possible; if depth is unknown, use default 20 in / 51 cm.
Is this a fitted sheet?
No. This product is a loose, non-elastic top sheet. It does not have fitted corners or 360° elastic.
How is the size calculated?
We use: Confirmed mattress depth + approximately 10 in / 25 cm tuck allowance on each edge. Default setup uses 20 in / 51 cm depth.
What if I do not know mattress depth?
You can use the default 20 in / 51 cm depth, but for best fit we recommend providing actual mattress Width × Length × Depth.
Can I order custom dimensions?
Yes. Select custom size and submit your exact measurements. Very large or unusual sizes may require production review.
